Volcanos

Roundup of Global Volcanic Activity

Bárdarbunga (Iceland): Over 800 earthquakes have occurred today so far, mostly now beyond the edge of the Dyngjujökull glacier. The crisis is showing no signs of decreasing. The intrusion itself has migrated about 1 km northwards since yesterday, and approaches the Asjka volcanic complex, which is a worrying development. A magnitude 4 earthquake occurred this morning under the eastern caldera rim of Askja.

IMO does not think an eruption is imminent and announced that it will from now on only post updates once a day (around noon) unless the situation escalates.

Stromboli (Eolian Islands, Italy): The lava flow in the new channel at the eastern side of the Sciara del Fuoco remains well alimented. After a calmer weak, it is now again reaching the sea, at least intermittently.

Bagana (Bougainville Island, Papua New Guinea): Eruptive activity continues at the volcano. An ash plume at approx. 7,000 ft (2.1 km) altitude was spotted by Darwin VAAC extending 50 km to the SW yesterday.

Batu Tara (Sunda Islands, Indonesia): A new ash plume extending approx. 50 km NW was reported yesterday on satellite imagery by Darwin VAAC.

This follows a relatively long interval of several weeks since the last ash plume spotted in early July.

Kilauea (Hawai'i): The lava flow branch that entered and followed a deep ground crack on Kīlauea's East Rift Zone last week has resurfaced and is now forming a small lava island inside the forest. Its farthest point is 11.4 km (7.1 miles) from the the vent on Puʻu ʻŌʻō, and 3.1 km (1.9 miles) from the eastern boundary of the Wao Kele o Puna forest reserve.

Popocatépetl (Central Mexico): Activity remains essentially unchanged and has been relatively low. The volcano emits a gas-steam plume most of the time and occasionally has small explosions that eject small amounts of ash.

Fuego (Guatemala): Activity has been stable at average levels with intermittent weak to moderate strombolian-type explosions.

During the past 24 hours, ash plumes rose up to 800 m and drifted up to 12 km west and southwest. The stronger explosions were accompanied by shock waves. Incandescent material was seen ejected to approx. 100 m above the crater.

Sabancaya (Peru): A phreatic explosion occurred at the volcano on the evening of 25 Aug at 20:39 local time, Peru's Geophysical Institute (IGP) informed.

The eruption was not observed directly, but inferred from its seismic trace. A swarm of long-period quakes followed the eruption, suggesting internal fluid movements.